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Alex Rivera
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I have an address object that I want to create an equals method for. I could have made this quite simple by doing something like the following (shortened a bit): public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Address other = (Address) obj; return this.getStreet().equals(other.getStreet()) && this.getStreetNumber().equals(other.getStreetNumber()) && this.getStreetLetter().equals(other.getStreetLetter()) && this.getTown().equals(other.getTown()); } Problem is, some of these might be null. I will in other words get a NullPointerException if there is no street letter in this address. How can I write this in a clean way while taking null values into account?
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